JPS586821Y2 - Paper sheet feeding device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a feeding device for the paper industry that feeds accumulated paper sheets one by one.

BACKGROUND ART Recently, automatic devices such as optical character readers and automatic deposit machines have been put into practical use to automatically perform tasks such as reading and counting various paper sheets.

However, in such automatic equipment, paper sheets are
A feeding device that reliably supplies sheets one by one is essential.

Conventionally, this type of feeding device accumulates paper sheets on a mounting plate,
By arranging a plurality of feed rollers in a straight line at the tip of the paper sheet that can freely move toward and away from the top paper sheet, and bringing these feed rollers into contact with the top paper sheet while rotating, The accumulated paper sheets are fed out one by one by frictional resistance with the feed roller.

However, with this configuration, at the beginning of feeding the paper sheet, the feed roller linearly contacts only the tip of the paper sheet, so the contact resistance that the paper sheet receives from the feed roller is Concentrate only on the tip.

As a result, the paper sheet on the top side may become distorted in areas other than the leading edge depending on the degree of contact with the paper sheet on the lower side, and in such cases, the feeding of the paper sheet may become unstable. This causes paper sheets to bend and cause skew.

The present invention was developed based on the above-mentioned circumstances, and its purpose is to arrange a plurality of feed rollers such as feed rollers so as to contact the paper sheets in a mountain shape in the feeding direction of the paper sheets. The feeding force applied to the paper sheets caught in the feeding body is not limited to only the leading edge of the paper products, but is distributed over a wide range to prevent distortion of the paper sheets. It is an object of the present invention to provide a paper sheet feeding device that avoids paper sheet feeding.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the figure, reference numeral 1 denotes a mounting plate having a guide body 2 provided on its upper surface, and this mounting plate 1 is adapted to be vertically driven by a lift mechanism 3 provided on its lower surface.

A contacting body 4 is disposed on one end surface side of the mounting plate 1, and the distal end surface of this contacting body 4 is brought into contact with one side of the mounting plate 1, and one side of the contacting body 4 is brought into contact with the guide body 2. Paper sheets P are accumulated on a mounting plate 1.

A storage section 5 is formed on the upper end surface of the abutment body 4 and is open over almost the entire length, and a friction body 6 made of a material such as rubber is held in the projection direction by a spring 7. It is energized and contained.

In the past, a drive shaft 8 was disposed horizontally above the contact body 4.
This drive shaft 8 is rotatably driven by a drive source (not shown).

A pair of arms 9, 9 are provided on the drive shaft 8 in parallel and spaced apart, with one end of these arms rotatably fitted together, and a drive pulley 10 is provided near the one arm 9 on the shaft 8. It is attached as one piece.

In the past, the friction body 6 was placed in the middle of the pair of arms 9, 9.
A driven shaft 11 is rotatably supported substantially above the drive shaft 8 and parallel to the drive shaft 8.

Furthermore, a drive shaft 12 is supported at the other ends of the pair of arms 9,9.

A driven pulley 10a is integrally fitted onto the driven shaft 11 at a position corresponding to the drive pulley 10, and a drive belt 13 is stretched between these boots 710 and 10a. The rotation is transmitted to the driven shaft 11.

Further, a plate body 14 is installed between the pair of arms 9, 9 with both ends fixed to the middle part of these arms 9, 9, and a magnet 15 is connected to this plate body 14.

When the biasing force of the magnet 15 is released, the pair of arms 9, 9 are displaced downward with the drive shaft 8 as a fulcrum via the plate body 14.

Generally, the driven shaft 11 has a pair of first side pulleys 1.
6, 16, and a first central pulley 17 between these side pulleys 16, 16 are integrally fitted with the driven shaft 11.

Furthermore, the driven shaft 11 includes a pair of first side pulleys 16,
A first support 18.18 is provided in the vicinity of each of the central pulleys 16 and 18, with one end of these being rotatably fitted.
A second support 19, which is longer than the first support 18, is provided in the vicinity of the support 7, with one end of the second support 19 being rotatably fitted.

Each of these supports 18, 18, 19 has engagement holes 18a, 1
8a, 19a are bored, and these engagement holes 18a, 18
The interlocking shaft 12 is inserted through a and 19a, so that each support 18, 18, and 19 is interlocked with the displacement of the pair of arms 9 with the drive shaft 8 as a fulcrum.

Additionally, a support shaft 20 is provided at the other end of each support 18, 18, 19.
... is rotatably provided.

A support shaft 20 provided on the side supports 18, 18.
20 are fitted with second side pulleys 16, 16, and second side pulleys J21.21, respectively, corresponding to the first side pulleys 16, 16.
Between the second side pulleys 16 and 21, a feed belt 22, 22 made of a material such as rubber having a higher frictional resistance than the frictional body 6 is connected to the tip of the paper sheet P and the frictional body 6. The two are traditionally placed facing each other.

In addition, a second central pulley 23 and a feed roller 24 made of a material with high frictional resistance are fitted to a support shaft 20 provided at the other end of the central support 19 and have a larger diameter than this pulley 23. A belt 25 is stretched between the second central pulley 23 and the first central pulley 17.

Since the central support body 19 is longer than the side support bodies 18, 18, the feed roller 24 is positioned facing approximately the center of the paper sheet P, and this foot roller 24
and the pair of feed belts 22.degree. 22 are positioned so as to form a substantially mountain shape with respect to the feeding direction of paper sheets P.

Once upon a time, a passing mechanism was disposed on a tray (not shown) opposite to the surface of the abutting body 4 opposite to the surface on which the placing plate 1 was provided, and the passing mechanism moved the tray onto the placing plate 1. The paper sheets P fed out from the tray are delivered to a conveyance mechanism (not shown).

Next, the operation of the above configuration will be explained.

When a supply start signal is input to this device, the drive shaft 8 is normally driven to rotate in the direction of the arrow in the figure, thereby rotating the driven shaft 11 via the drive belt 13.

As this driven shaft 11 rotates, the pair of first side pulleys 16, 16 and the first central pulley 17 rotate together, so that these pulleys 16, 16, 17 and the second
The feed belts 22, 22 stretched between the side pulleys 21, 21 and the belt 25 stretched between the second central pulley 23 run endlessly.

As the belt 25 runs endlessly, the spindle 20 on which the second central pulley 23 is fitted rotates.
The feed roller 24 fitted to the feed roller 24 also rotates.

Next, the biasing force of the magnet 15 is released, and the pair of arms 9 are displaced downward about the drive shaft 8 as a fulcrum.

Then, the driven shaft 11 and the interlocking shaft 12 supported by the arms 9, 9 are displaced downward, so that the pair of endlessly running feed belts 22, 22 and the rotating feed roller 24 are displaced downward.
is pressed against the topmost stacked paper sheet P, and the paper sheet P is sent out by the frictional resistance between the feed belts 22, 22 and the feed roller 24.

The paper sheet P sent out by these feed belts 22, 22 and the feed roller 24 is held between the feed belts 22, 22 and the friction body 6 elastically provided on the upper end surface of the contact body 4. Otherwise, it is discharged from the mounting plate 1.

By the way, according to the above configuration, the paper sheets P are arranged in a mountain shape with respect to the feeding direction of the paper sheets P, and are fed out by the contact resistance between the pair of feed belts 22, 22 and the feed roller 24. .

That is, this paper sheet P is passed through a pair of feed belts 22.
22 presses both sides of the tip, and the feed roller 2
4 presses the central part.

Therefore, the paper sheets P are prevented from being distorted due to the central portion being pressed by the feed roller 24, so that the paper sheets P are fed out in a stable state.

! In addition, when the paper sheets P are ejected while being held between the pair of feed bells (22.22) and the friction body 6, when two sheets P overlap, the lower paper Since the leaves P are prevented from being ejected due to the frictional resistance with the friction body 6, the paper sheets P can be reliably sent out one by one.

Note that the present invention is not limited to the one embodiment described above; for example, in the embodiment described above, a pair of feed belts and feed rollers were used as the feeding bodies, but there is no problem in using either of them as the feeding bodies. In addition, the number of feeders is not limited to three, as long as they are arranged so as to come into contact with the paper sheets in a mountain shape in the feeding direction of the paper sheets.

As described above, the present invention uses the same drive system to drive multiple feeders that feed out paper sheets that come into contact with paper sheets and get stuck in frictional resistance, and also so that the paper sheets are fed in the same direction. Moreover, since it is arranged so that it contacts the paper sheets in a mountain shape in the feeding direction of the paper sheets, it is possible to easily drive the plurality of feeders at the same speed, and the paper industry can easily drive the paper sheets at the same speed. Since the paper sheets are fed out by being pressed by a plurality of feeding bodies on both sides of the tip and the center portion other than the tip and receiving feeding force in the same direction and at the same speed, there is no possibility that the sheets will be distorted during feeding.

Therefore, since the paper sheets are sent out in a stable state, it is possible to prevent the occurrence of skew.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view, and FIG. 2 is a side view with a portion of the box cut away. 22... Feed belt (feeding body), 24...
...Feed roller (feeding body), P...Paper sheets.

Claims (1)

[Scope of utility model registration request] A plurality of feeders are brought into contact with the accumulated paper sheets on the top surface,
In paper sheet feeding devices that feed paper sheets one by one using frictional resistance with these feeding bodies, a plurality of feeding bodies are driven by the same drive system, and the paper sheets are fed in the same direction. A paper sheet feeding device characterized in that the paper sheet feeding device is arranged so as to contact the paper sheets in a mountain shape with respect to the feeding direction of the paper sheets.